document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=182146>Question 182146</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chemist has prepared two acid solutions, one of which is 4% acid by volume, another 11% acid. HOw many cubic centimeters of each should the chemist mix together to obtain 50cm^3 of 6.24% solution? </SPAN>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "acid + acid = acid<BR>\n" );
document.write( "0.04x + 0.11(50-x) = 0.0624*50\r<BR>\n" );
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document.write( "Multiply thru by 10000 to get:\r<BR>\n" );
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document.write( "400x + 1100(50-x) = 624*50\r<BR>\n" );
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document.write( "400x + 1100*50 - 1100x = 624*50\r<BR>\n" );
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document.write( "-700x = -476*50<BR>\n" );
document.write( "x = 34 cm^3 (amt. of 4% solution in the mixture)<BR>\n" );
document.write( "50-x = 50-34 = 16 cm^3 (amt. of 11^ solution in the mixture)<BR>\n" );
document.write( "================================================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );